Pin wheel



May 15, 192& 1,669,748

G.G.GREGERI PIN WHEEL Griginal Filed May 23, 1925 [Aim/V7012 George G.Greger ATTORNEY.

Patented May 15, 1928.

QFFIQE GEORGE e. omens, or 13mm, men-isms.

PIN WHEEL.

Continuation or application Serial No. 32,303, filed Hay,23, 1925. Thisapplication filed Novemb er 29,

1926. serial No. 151321.

This invention relates to pin. Wheels, 'Whirlers, and air propelleddevices adapted revolve or spin' about an axis by action ofair currentsagainstthedevicesorby said devices being'quickly moved against the airto produce currents of air against or through the devices. The presentappliz tion is a continuation of my previous application Serial No.32,309,filed May 23, 1925. Myinventionaims'to provide, as a newarticlerof manufacture, a pin wheel or Whirler thatmay beusedby'juveniles for amuse rnent purposes or may be used by adults foradvertising purposes. "Asanamusementdevice it'will present a colorfulappearance, and in oneforinmay be a pinwhelwithin a pinwheel Withth'eWheels arranged to revolve iniop posite directions and thus aiford anattractive"appearance compared to the -nsualsingle pin Wheel. "Asan'advertising device, parts of the pin Wheel may carry various-kinds ofprinted matter Which-may be observed when the device is stationary.invention further aims to provide :a ginvvheel or whirler embodying aseriesof hues and baffles or deflectors which cooper-ate in using amaximum volume of air for causing rotation of the pin Wheel, the bladearrangement being such that :air may be deflected from "one blade toanother and in this manner ahigh speed iinpartedto the pin Wheel. :Myinvention will-behereinafter specifieally described andthen claimed, andreferenc will now be had to the drawing wherein Figured. a' persywctiveview of one/form pinvtheel or whirler; r

"Fl". Elisa plan oif alblank from which a to "Wheel may be evolved; o

*Fi 3 is a vertical section of the pin Wheel showing the "relativearrangement er parts-thereon;

.Fig. 4"is a perspective view of another Fig. 5 is'a fplan of assembledblanks "from Wh'ich i is jma-de the pin/Wheel or "Whii-l'er 'shdtvn inJFi'g. '4, and

6 is across sectional View oftwo i0 blanksassembledfor the formation ofthe pin'fwheel or Whirler shown'in-Fig; 711.

The reference numeral '1 denotes a pin shaftor other thin rigidmeifiberproviding spacers or various kinds of ornamental members. i

Considering that type of wheelshown in F gs. 1 to 3 inclusive, eachwheel is made from aisingle blank ofpaper,- celluloid, metal or anyother light and durable material that can be cut, stamped andben'tto adesired configuration. The material may be any color andsusceptible-to"having printed matter placed -'thereon. Each heel blank'has a centerportion 5 and a divided peripheral edge 6, theperipheral'edge beingdivided bya plurality of equally spaced and substantially radiallydisposed incisions 7 Which extend inwardly a short distan'ceto meetcurved slits 8 extending inwardly from the peripheral; portions'oi theblank towards thOCGlltGI' portion 5 ofthe said blank, the-inner ends ofsaid slits terminating at sharplyclurved slit/s9 at theinarginalportiOnS of a the blank center. Fm" a 'four -bladed Wheel therewill be four sets of the incisions'and slits sothat four blades 10 willbe iorined,

with each blade "tapering inwardly "fI'Ol'Il' its inner extremity to itsouter extremity which is representecl by a blunt tip '11. Ea ch bladehas-its outer-extremity formed by a-peripheral-edgefi of the'blank'andone of the slits 8, aird'i'nterinediatethe ends of-each blade dge 6 andthe incision 7.

'lphe center'portion 5 oi:the'blank'1s a is an outer bar-b 12fer1ned bythe peripheral tured; as at 13 a-nd the blunt tipll of each :bladeisapertured, as-at 14'. (The blades are adaptedtobe sprungfroin th-e planeof the blank to on-eside thereof and the 'blunt tips of the'bladesbrought into -si-1perposed rela tionsso that the apertures'lt of theblades will be in matched relation and co-axially of the aperture 13.For holding the blnnt blade tips together an eyeletor tubular rivet 15may be employed and \vhen the blades havethe outer ends thereofconnecteda parabolic configuration is imparted to said 'bla deswit-heach blade having gradual sloping contour afi'ording jan uin cline'dsurface and an outturne'd' edgefioni the centenpor' tion 5 of the blankto the connected tips of the blades. lVith the blades gathered so thatthe tips thereof are connected and substantially at a right angle toeach other, there will be a space between the blank portion 5 and theconnected tips 11. It is in this space that a smaller, similarly formed,wheel 16 may be placed, together with ballles or deilectors 1.7 and 18,and a spacer 20. The baflies or deflectors 17 and 18 may be in the formof disks having center apertures and the spacer 20 may be in the form ofa sleeve or tubular member. The ballle 18 may be larger than the baiil-e17 and placed in the inner or smaller wheel 16. The spacer 20 may beplaced between the center portion of the inner and outer wheels, thusproperly centering the inner wheel relative to the outer wheel so thatthere will be no frictional contact between said wheels. The blades ofthe inner wheel may be formed the reverse of the blades of the outerwheel so that the inner wheel may be driven in an opposite direction tothat of the outer wheel and thus lend novelty and attractiveness to thestructure. Air impinging against the small bafile 17 will be deflectedoutwardly against the tip portions of the blades and air impingingagainst the large balile 18 will be deflected outwardly to encounter theblades of the inner wheel 16 and from these blades to the blades of theouter wheel. It is on the bafiles or deflectors 17 and 18 that printedmatter may be placed, for advertising purposes, and it is apparent thatwith these baflie members of different colors and the inner and outerwheels made of different colors that a very attractive pin-wheel orwhirler is formed.

Reference will now be had to Figs. 4, 5 and 6 of the drawings showinganother form of pin wheel or whirler wherein the wheel is made from twoblanks, designated 21 and .22. Each blank is made similar to the blankshown in Fig. 2 and the blanks are placed in superposed relation withthe blades of the lowermost blank extending into the slits of theuppermost blank, so that the blades 10 of the lowermost blank 22 willoverlie approximately one-half of the blades 10 of the uppermost blank21. This will place the inner curved edge of each blade of one blankapproximately parallel to the inner curved edge of the adjacent blank,and with the blades of the two blanks in overlapped relation, as broughtout in Fig. 6, the two blanks are interlocked so that one blank cannotbecome accidentally displaced relative to the outer blank. Looking ateither side of the assembled blanks the blades of each blank appear andthe apertured tips of the blades are adapted to be gathered togetherwith the blades co-axially of the apertures 13 of said blanks, so thatthe wheels, one within the other, may be assembled on the pin 1 withballies 23 and 24, centrally of the wheels. The ballle 24: may beradially corrugated and a spacer 25 mounted on the pin 1 between thebailles and wheels. In bending the interlocked blades a spiral formationhaving an inclined surface is imparted thereto, as clearly brought outin Fig. 4 and it is the multiplicity of blades that contributes to easyrotation of the wheel in a small breeze, because all surfaces of theblades are effective for propelling purposes. With a blank coloreddillerent from an ad j acent blank an attractive pin wheel or whirlcr isproduced and by using proper colors rotation of the wheel will cause thecolors to blend and produce a desired effect.

From the foregoing it will be observed that one form of pin wheel hasfour parabolic outer blades and four parabolic inner blades, with onecomplete wheel in the other and independent thereof, while in the otherform there are two wheels interlocked together so that the blades of onewheel will cooperate with the blades of the other wheel in providing acomplete eight bladed wheel or whirler having blades with inclinedsurfaces. I have illustrated a preferred way of producing the blades ofeach blank, but it is obvious that in slitting each blank the slits maybe sinuous, tortuous or irregular so as to produce scalloped orotherwise shaped blade edges which will lend a degree 0fornainentationto the pin wheel or whirler. In that form of pin wheel shown in Fig. 1,the barbed portions of the inner wheel may be dispensed with to avoidany interference of its rotation with that of the outer wheel, and it isobvious that the deflectors or bafiles may have edges and surfacescontributing to the ornamentation of the device.

I attach considerable importance to the formation of a pin wheel from acircular blank provided with curved slits adapted to provide curved orribbon-like blades. By reference to Figs. 2 and 5 it will be noted thatthe inner ends of the slits are equally spaced relative to one anotherand to the center of the blank. The outer ends of the slits are equallyspaced relative to one another and the spacing is such that the slitsmay be said to overlap, that is, the intermediate portion of one slit isopposite the ends of adjacent slits. Or the arrangen'lent may beconsidered as the outer end of one slit overlapping the inner end of anadjacent slit. I

As a result of this arrangement one blade will overlap an adjacent bladeand extend to practically the middle portion of the outer edge of saidadjacent blade. This is essential so that when the tips of the bladesare i brought together the curved edges of the blades will present arosette configuration when the pin wheel is viewed in front eleration.This rosette configuration cannot be conveniently attained from blanksunless the same are circular, as shown in Figs. 2 and 5.

It is thought that the construction of my pin Wheels or whirlers will beapparent without further description, and while in thedrawing there areillustrated the preferred embodiments of my invention, it is vto beunderstood that the structural elements are susceptible to suchvariations and modifications as fall within the scope of the appendedclaims.

What I claim is:

1. In a pin wheel, a pin, a wheel made from a blank provided with curvedslits to form a plurality of tapering blades, said wheel having itscentral portion mounted on said pin with the blade tips brought togetheron. said pin in spaced relation to the central portion of the wheelblank, a baffle on said pin resting against the edges of the gatheredtip portions, a spacer on said pin to support said bafile and to holdsaid baflle against said gathered tip portions, and a disk on said pinat the inner end of said spacer and within said Wheel.

2. In a pin wheel,-a pin, and a Wheel made from a circular blankprovided with curved slits extending from the periphery towards thecentral portion of said blank and diverging gradually from the peripheryof the blank to form a plurality of tapering blades, said Wheel havingits central portion mounted on said pin with the blade tips broughttogether on said pin so that said Wheel presents a rosette configurationcircular in front elevation. V

3. As an article of manufacture, a pin wheel adapted to revolve about apin, said wheel being formed from a circular blank provided with curvedslits extending inwardly from the margin towards the central portion ofthe blank and diverging gradually from the periphery of the blanktodivide the blank into curved blades.

In testimony whereof I aflix my signature.

GEORGE G. GREGER.

